CN101826732A - System capable of feeding electric energy loaded by alternating current equipment back to power grid - Google Patents
System capable of feeding electric energy loaded by alternating current equipment back to power grid Download PDFInfo
- Publication number
- CN101826732A CN101826732A CN201010163718A CN201010163718A CN101826732A CN 101826732 A CN101826732 A CN 101826732A CN 201010163718 A CN201010163718 A CN 201010163718A CN 201010163718 A CN201010163718 A CN 201010163718A CN 101826732 A CN101826732 A CN 101826732A
- Authority
- CN
- China
- Prior art keywords
- alternating current
- microprocessor controls
- current
- module
- output equipment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
Landscapes
- Rectifiers (AREA)
Abstract
The invention discloses a system capable of feeding electric energy loaded by alternating current equipment back to a power grid, comprising a municipal electric power network or direct current output equipment and alternating current output equipment connected with the municipal electric power network or the direct current output equipment, wherein the alternating current output equipment is connected with a microcontroller controlled AC/DC converting module for simulating various load characteristics and with active PFC; the AC/DC converting module is connected with a microcontroller controlled PWM active grid-connected inverter module; the active grid-connected inverter module is connected with a municipal electric power network; and a municipal electric power network phase detecting module is connected between the active grid-connected inverter module and the municipal electric power network. The system is capable of efficiently feeding the electric energy loaded by the alternating current output equipment back to the municipal electric power network.
Description
Technical field
The present invention relates to a kind of can be with the system of the electric energy loaded feedback grid of alternating current equipment.
Background technology
In the present alternating current equipment production process must through long-term repeatedly, the fully loaded test just can be finished down, increase production cost during this time wastes energy, various countries' alternating current equipment production industry for this reason, for energy recovery is utilized problem, and made various designs, but also there is not a cover successful design system till now.
Summary of the invention
For overcoming deficiency of the prior art, the object of the present invention is to provide a kind of can be with the system of the electric energy loaded feedback grid of alternating current equipment, this system can draw the efficient feedback of electric energy of carrying to return electricity network from exchanging output equipment.
For solving the problems of the technologies described above, realize above-mentioned technique effect, the present invention has adopted following technical scheme:
A kind of can be with the system of the electric energy loaded feedback grid of alternating current equipment, comprise electricity network or direct current output equipment, comprise that also one connects the interchange output equipment of described electricity network or direct current output equipment, described interchange output equipment connects a microprocessor controls and simulates various load characteristics and have source PFC power factor correction function AC/DC conversion module, described microprocessor controls is simulated various load characteristics and is had source PFC power factor correction function AC/DC conversion module and connect a microprocessor controls PWM and modulate active parallel network reverse module, and described microprocessor controls PWM modulates active parallel network reverse module and connects electricity network; Described microprocessor controls PWM modulates and also is connected with an electricity network detecting phase module between active parallel network reverse module and the electricity network.
Further, described microprocessor controls is simulated various load characteristics and is had source PFC power factor correction function AC/DC conversion module and be transformed to the direct current of the required amplitude of parallel network reverse by the alternating current that utilizes PWM four-quadrant pulsewidth current transformer technology, transient current to stagnate the ring control technology, will exchange output equipment output by microprocessor controls, and the fictitious load characteristic curve waveform that AC current waveform tracking microcontroller is got from man-computer interface or compunication.
Further, microprocessor controls is simulated various load characteristics to have source PFC power factor correction function AC/DC conversion module is three-phase alternating current PFC rectification circuit or single phase alternating current (A.C.) PFC rectification circuit.
Further, described microprocessor controls PWM modulates the direct current that active parallel network reverse module is come by microprocessor controls, with prime AC/DC conversion, it is opposite with the utility grid voltage that detects to stagnate by PWM four-quadrant pulsewidth current transformer technology, transient current that ring control technology or frequency multiplication SPWM technology are transformed to current phase, and power factor is connected to the grid for-1 alternating current.
The invention has the beneficial effects as follows: various load characteristics can be simulated (as constant current, ladder lifting, linear lifting by system of the present invention, instantaneous saltus step, inductive load, capacitive load, resistive load and their combination etc.) and will be thus draw the efficient feedback of electric energy of carrying to return electricity network from exchanging output equipment, from and can realize effect of saving energy.
The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.
Description of drawings
Fig. 1 is a system principle diagram of the present invention.
Fig. 2 is a three-phase alternating current PFC rectification circuit of the present invention.
Fig. 3 is a single phase alternating current (A.C.) PFC rectification circuit of the present invention.
Number in the figure explanation: 1. electricity network or direct current output equipment, 2. interchange output equipment, 3. microprocessor controls is simulated various load characteristics and is had source PFC power factor correction function AC/DC conversion module, 4. microprocessor controls PWM modulates active parallel network reverse module, 5. electricity network, 6. electricity network detecting phase module.
Embodiment
See also shown in Figure 1, a kind of can be with the system of the electric energy loaded feedback grid of alternating current equipment, comprise electricity network or direct current output equipment 1, comprise that also one connects the interchange output equipment 2 of described electricity network or direct current output equipment 1, described interchange output equipment 2 connections one microprocessor controls is simulated various load characteristics and is had source PFC power factor correction function AC/DC conversion module 3, described microprocessor controls is simulated various load characteristics and is had source PFC power factor correction function AC/DC conversion module 3 and connect a microprocessor controls PWM and modulate active parallel network reverse module 4, and described microprocessor controls PWM modulates active parallel network reverse module 4 and connects electricity networks 5; Described microprocessor controls PWM modulates and also is connected with an electricity network detecting phase module 6 between active parallel network reverse module 4 and the electricity network 5.
Further, described microprocessor controls is simulated various load characteristics and is had source PFC power factor correction function AC/DC conversion module 3 and be transformed to the direct current of the required amplitude of parallel network reverse by the alternating current that utilizes PWM four-quadrant pulsewidth current transformer technology, transient current to stagnate the ring control technology, will exchange output equipment output by microprocessor controls, and the fictitious load characteristic curve waveform that AC current waveform tracking microcontroller is got from man-computer interface or compunication.
Further described electricity network 5 is showed the access electrical network that exchanges the output equipment power supply, can be single-phase or three-phase.
Further, described interchange output equipment 3 general references obtain electric energy and electric energy are converted into the equipment of exporting that exchanges from electricity network or other direct current output equipments.For example UPS, frequency converter, combining inverter, variable frequency power supply, AC voltage regulator etc.
Preferably, described microprocessor controls is simulated various load characteristics and is had source PFC power factor correction function AC/DC conversion module 3 and be three-phase alternating current PFC rectification circuit, as shown in Figure 2, Va, Vb, Vc, Va ', Vb ', Vc ' are the high frequency power switching device among Fig. 2, they adopt the ring control output PWM wave mode that stagnates to drive by drive circuit by microcontroller according to the target current waveform, with the control input power factor.
Preferably, described microprocessor controls is simulated various load characteristics and is had source PFC power factor correction function AC/DC conversion module 3 and be single phase alternating current (A.C.) PFC rectification circuit, as described in Figure 3, Va, Vb, Va ', Vb ' are the high frequency power switching device among Fig. 3, they adopt the ring control output PWM wave mode that stagnates to drive by drive circuit by microcontroller according to the target current waveform, with the control input power factor.
Further, described microprocessor controls PWM modulates the direct current that active parallel network reverse module 4 is come by microprocessor controls, with prime AC/DC conversion, it is opposite with the utility grid voltage that detects to stagnate by PWM four-quadrant pulsewidth current transformer technology, transient current that ring control technology or frequency multiplication SPWM technology are transformed to current phase, and power factor is connected to the grid for-1 alternating current.
Claims (4)
1. an energy is with the system of the electric energy loaded feedback grid of alternating current equipment, comprise electricity network or direct current output equipment (1), it is characterized in that: comprise that also one connects the interchange output equipment (2) of described electricity network or direct current output equipment (1), described interchange output equipment (2) connection one microprocessor controls is simulated various load characteristics and is had source PFC power factor correction function AC/DC conversion module (3), described microprocessor controls is simulated various load characteristics and is had source PFC power factor correction function AC/DC conversion module (3) and connect a microprocessor controls PWM and modulate active parallel network reverse module (4), and described microprocessor controls PWM modulates active parallel network reverse module (4) and connects electricity network (5); Described microprocessor controls PWM modulates and also is connected with an electricity network detecting phase module (6) between active parallel network reverse module (4) and the electricity network (5).
2. according to claim 1 can be with the system of the electric energy loaded feedback grid of alternating current equipment, it is characterized in that: described microprocessor controls is simulated various load characteristics and is had source PFC power factor correction function AC/DC conversion module (3) and be transformed to the direct current of the required amplitude of parallel network reverse by the alternating current that utilizes PWM four-quadrant pulsewidth current transformer technology, transient current to stagnate the ring control technology, will exchange output equipment output by microprocessor controls, and the fictitious load characteristic curve waveform that AC current waveform tracking microcontroller is got from man-computer interface or compunication.
3. the according to claim 2 system of the electric energy loaded feedback grid of alternating current equipment can being is characterized in that: microprocessor controls is simulated various load characteristics, and to have source PFC power factor correction function AC/DC conversion module (3) be three-phase alternating current PFC rectification circuit or single phase alternating current (A.C.) PFC rectification circuit.
4. according to claim 1 can be with the system of the electric energy loaded feedback grid of alternating current equipment, it is characterized in that: described microprocessor controls PWM modulates the direct current that active parallel network reverse module (4) is come by microprocessor controls, with prime AC/DC conversion, it is opposite with the utility grid voltage that detects to stagnate by PWM four-quadrant pulsewidth current transformer technology, transient current that ring control technology or frequency multiplication SPWM technology are transformed to current phase, and power factor is connected to the grid for-1 alternating current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010163718A CN101826732A (en) | 2010-05-06 | 2010-05-06 | System capable of feeding electric energy loaded by alternating current equipment back to power grid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010163718A CN101826732A (en) | 2010-05-06 | 2010-05-06 | System capable of feeding electric energy loaded by alternating current equipment back to power grid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101826732A true CN101826732A (en) | 2010-09-08 |
Family
ID=42690502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010163718A Pending CN101826732A (en) | 2010-05-06 | 2010-05-06 | System capable of feeding electric energy loaded by alternating current equipment back to power grid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101826732A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1603849A (en) * | 2004-10-29 | 2005-04-06 | 山东大学 | General simulator for electrical load |
| CN201274451Y (en) * | 2008-08-21 | 2009-07-15 | 江苏林洋电子有限公司 | Analogue electric power for four quadrant electric grid |
| CN101527459A (en) * | 2008-11-04 | 2009-09-09 | 珠海赛比特电气设备有限公司 | Self-adaptive efficient energy-saving grid-connected feedback type electronic load |
| CN201726151U (en) * | 2010-05-06 | 2011-01-26 | 苏州元泰自动化科技有限公司 | System capable of feeding back loaded electric energy of alternating current equipment to power grid |
-
2010
- 2010-05-06 CN CN201010163718A patent/CN101826732A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1603849A (en) * | 2004-10-29 | 2005-04-06 | 山东大学 | General simulator for electrical load |
| CN201274451Y (en) * | 2008-08-21 | 2009-07-15 | 江苏林洋电子有限公司 | Analogue electric power for four quadrant electric grid |
| CN101527459A (en) * | 2008-11-04 | 2009-09-09 | 珠海赛比特电气设备有限公司 | Self-adaptive efficient energy-saving grid-connected feedback type electronic load |
| CN201726151U (en) * | 2010-05-06 | 2011-01-26 | 苏州元泰自动化科技有限公司 | System capable of feeding back loaded electric energy of alternating current equipment to power grid |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Sahoo et al. | Review and comparative study of single-stage inverters for a PV system | |
| Chen et al. | Design and implementation of three-phase two-stage grid-connected module integrated converter | |
| Dong et al. | Grid-interface bidirectional converter for residential DC distribution systems—Part one: High-density two-stage topology | |
| Nayanasiri et al. | Half-wave cycloconverter-based photovoltaic microinverter topology with phase-shift power modulation | |
| CN103023362A (en) | Bridgeless inverter circuit and solar bridgeless inverter | |
| Banaei et al. | Power quality improvement based on novel power electronic transformer | |
| CN203423631U (en) | Solar energy no-bridge inverter comprising high boosted circuit | |
| CN102255356B (en) | Efficient uninterruptible power supply | |
| CN102116850B (en) | Device and method for testing rectifier | |
| Rahul et al. | A new multilevel DC-DC boost converter for fuel cell based power system | |
| CN201726151U (en) | System capable of feeding back loaded electric energy of alternating current equipment to power grid | |
| US20100213768A1 (en) | Apparatus for photovoltaic power generation | |
| CN104753082A (en) | Flexible high voltage direct current transmission converter topology used for wind power plant grid connection | |
| Barbosa et al. | Distributed generation system using renewable energy sources and a new converter topology | |
| Zhang et al. | A novel impedance-network-based electric spring | |
| CN202617030U (en) | Multi-level photovoltaic grid connected inverter with isolation transformer | |
| CN203219215U (en) | Solar energy system comprising power optimizing apparatus | |
| Alibeik et al. | Symmetrical components and power analysis for a two-phase microgrid system | |
| Razi et al. | A novel single-stage PWM microinverter topology using two-power switches | |
| Ji et al. | A novel Multi-functional photovoltaic Micro-inverter and its control strategy | |
| CN101826732A (en) | System capable of feeding electric energy loaded by alternating current equipment back to power grid | |
| CN202084952U (en) | On-grid power converter device of switched reluctance generator | |
| de Almeida et al. | Modulation technique for a single-stage three-phase bidirectional AC/DC converter with PFC and high-frequency isolation | |
| CN201726150U (en) | System capable of feeding direct-current equipment-loaded electric energy back to electric network | |
| Kshirsagar et al. | Design and simulation of transformer less single phase photovoltaic inverter without battery for domestic application |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100908 |